Peters



(No Model.) I

w B. H. WESSLAU. JOINT FOR COUPLING UNDERGROUND GABLES.

N0. 415;752. Patented Nov. 26, 1889.

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UNITED STATES PATENT OFFICE.

BROR HEMMING WVESSLAU, OF CHARLOTTENBURG, PRUSSIA, ASSIGNOR TO SIEMENS 85 IIALSKE, OF BERLIN, GERMANY.

JOINT FOR COUPLING UNDERGROUND CABLES.

SPECIFICATION forming part of Letters Patent No. 415,752, dated November 26, 1889.

Application filed February 4, 1887. Serial No. 226,575- (No model.) Patented in Germany April 27, 1887, No. 42,256 in England September 2, 1887, No. 11,932; in France December 20, 1887, No. 187,711, and in Anstria-Hnngarylebruary 18, 1888, No.

44,641 and No. 5,213.

To all whom it may concern.-

Be it known that I, BRoR HEMMING WEss- LAU, of Oharlottenburg, in the German Empire, have invented certain new and useful Improvements in Protecting the Ends of Underground Cables from the Permeation of Moisture, (which have been patented in the German Empire by Letters Patent No. 42,256, of April 27,1887; in England by Letters Pat- 1o ent No. 11,932, of September 2, 1887; in

France by Letters Patent N 0. 187,711, of December 20, 1887 in Austria by Letters Patent No. 44,641 187, tome 3S, folio 351, of February 18, 1888, and in Hun garyby Letters Patent No. 5,213, tome XXII, folio 325, of February 18, 1888,) of which the following is a specification.

My invention has for its object to provide a means whereby underground cables may be protected from the permeation of moisture,

2c which, entering from the ends thereof between the ditferent layers of which the cable is composed, destroys its insulation; and for this purpose it consists in removing the concentric layers of the cable so that each partially un- .25 covers the one immediately beneath it, and

upon the thus prepared end winding or placing rubber hose, band, insulating tape, or

similar insulating material which is impervious to moisture which is around and in con- 0 tact with each of the layers, as will be hereinafter more fully described and claimed.

Reference is had to the accompanying drawing, which is a plan view, partially in section, and in which corresponding parts are 3 5 designated by corresponding letters.

The end closure A (as I term the hereinafter-described insulating-sheathin g) consists of,for instance, a rubber band shoved on, a rubberband wound around, or a woven or braided tape saturated with an insulating compound 0 coiled around the cable. The several layers put on the conductor, and of which the cable is composed, are cut off into steps before the application of the insulating-sheathing, so that the sheathing A covers part of the surface of the conductor 0, part of the insulating-layer 00 covering the conductor, and part of the lead covering q and part of the insulating layer 0c surrounding the lead covering. In this manner between the conductor and lead covering a sufficiently large space is provided to prevent short-circniting, and, besides, the insulating-layer covering the conductor is hermetically closed against the permeation of moisture. The conductive connection of the said end of the conductor with other conductors is accomplished in the manner known by means of binding-screws.

Having now described my invention, what I claim, and desire to secure by Letters Pat- 6o ent, is-

An end closure for cables, consisting of a rubber hose, band, or insulating-tape inclosing and in contact with the several layers of which the cable is composed, substantially as and for the purposes described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

Witnesses:

B. R01, M. W. MOORE. 

